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- Title
Recognition of alpha-mannan by dectin 2 is essential for onset of Kawasaki disease-like murine vasculitis induced by Candida albicans cell-wall polysaccharide.
- Authors
Toshiaki Oharaseki; Yuki Yokouchi; Yasunori Enomoto; Wakana Sato; Kenichi Ishibashi; Noriko Miura; Naohito Ohno; Kei Takahashi
- Abstract
Objectives: Using a murine model of systemic Kawasaki disease (KD)-like vasculitis induced by Candida albicans cell-wall-derived mannan ⋅ β-glucan ⋅ protein complexes, the objective was to elucidate the relationships of β-glucan receptor dectin-1 (D1) and a-mannan receptor dectin-2 (D2) to the onset of that vasculitis. Methods: The incidence and histological severity of vasculitis were compared among mice lacking the genes for D1 or D2 (i.e. D1-/- and D2-/-) and wild-type (WT) mice. Results: The incidences of vasculitis in the three animal groups were 100% (18/18) in the WT group, 100% (18/18) in the D1-/- group, and 0% (0/18) in the D2-/- group. In the WT and D1-/- mice, severe inflammatory cell infiltration, consisting mainly of neutrophils and macrophages, was seen in the aortic root and the coronary arteries. On the other hand, in the D2-/- mice, not even mild vascular lesions such as endoarteritis were seen. Conclusion: Recognition of α-mannan by D2 played an important role in the onset of vasculitis in the studied murine model.
- Subjects
MUCOCUTANEOUS lymph node syndrome; VASCULITIS; CANDIDA albicans; ANIMAL models in research; NEUTROPHILS; MACROPHAGES
- Publication
Modern Rheumatology, 2020, Vol 30, Issue 2, p350
- ISSN
1439-7595
- Publication type
Article
- DOI
10.1080/14397595.2019.1601852